The difference would be that impervious structures and surfaces generally do not allow molecules and compound to be transferred across. It is generally impossible to get something through an impervious surface. This isn't true, however, for pervious surfaces.
Answer:
I wish I could help but I don't think this work is on my grade level
Is this multiple choice?!
Answer:
To balance the production of certain products.
Explanation:
Feedback inhibition is when byproduct from metabolic reactions in cells accumulates and is in excess. The product goes and inhibits the enzyme that is responsible for speeding its chemical reaction, balancing the amount of product needed, with the amount already produced.
Therefore feedback inhibition is important in metabolic pathways because it balances the production of amino acids and nucleotides. It is there to ensure that the exact amount needed is produced.